a warm transit can put a visible degradant peak

214nm sees the amide backbone so it sees everything. 280 only sees aromatics

if the lab reports area percent without stating the wavelength, the number is less useful than it looks

baseline is drifting badly, is that the column or the mobile phase

nobody runs enough blanks, including me

if somebody says they ran a mass spec and does not show you a spectrum, that is a claim, not a result

a certificate with a number and no chromatogram is asking you to trust the integration you cannot see

how would a truncation sequence show up

ms/ms sequencing is the only thing i would call identity. everything else is circumstantial

whats the void volume peak, is that always solvent

plus 0.98 is deamidation